EP1440271A1 - Kopplungsvorrichtung - Google Patents

Kopplungsvorrichtung

Info

Publication number
EP1440271A1
EP1440271A1 EP02795327A EP02795327A EP1440271A1 EP 1440271 A1 EP1440271 A1 EP 1440271A1 EP 02795327 A EP02795327 A EP 02795327A EP 02795327 A EP02795327 A EP 02795327A EP 1440271 A1 EP1440271 A1 EP 1440271A1
Authority
EP
European Patent Office
Prior art keywords
pipe end
coupler
socket
coupler according
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02795327A
Other languages
English (en)
French (fr)
Other versions
EP1440271B1 (de
Inventor
Philippe Le Quere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legris SA
Original Assignee
Legris SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legris SA filed Critical Legris SA
Publication of EP1440271A1 publication Critical patent/EP1440271A1/de
Application granted granted Critical
Publication of EP1440271B1 publication Critical patent/EP1440271B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/008—Couplings of the quick-acting type for branching pipes; for joining pipes to walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

Definitions

  • the present invention relates to a coupler intended for the connection of two fluid transport elements such as a pipe and a fluid receiving element such as a reservoir or a fluid emitting element such as a pump.
  • So-called instant or quick-connect couplers which comprise a tubular body arranged to receive a pipe end and provided internally with means for retaining this pipe end.
  • These means are generally constituted by a deformable washer whose inner circumference is divided into a plurality of teeth or claws which extend projecting inside the tubular body.
  • the tightness of the connection is generally produced by an O-ring which encloses the end of the pipe, so that the scratches risk constituting leakage zones or damaging the seal to the point that it can no longer perform its function. It would be possible to increase the flexibility of the washer to limit the force exerted on the external surface of the pipe end by the teeth. However, this decreases the firmness of the retainer and increases the recoil of the pipe end when the circuit is pressurized. However, this decline gives rise to a fluid retention zone which must be kept as low as possible, especially in the perishable liquid transport circuits.
  • a coupler comprising a tubular body which is arranged to receive a tubular fluid transport element comprising a pipe end, and which is provided with means snap-fitting of the tubular element, the coupler comprising a bushing provided internally with means for retaining the pipe end which are selectively activatable and deactivatable, the bushing being mounted in the tubular body so as to be axially movable between a position for activating the retaining means and a position for deactivating the retaining means and the sleeve being provided with reciprocal latching means for those of the body in order to cooperate with the latter in the activation position.
  • the sleeve serves as an interface between the latching means of the tubular body and the pipe end, and ensures the retention of the connector end. pick when it is in the activation position while the introduction or disengagement of the pipe end is left free when the sleeve is in its deactivation position.
  • the bushing is provided internally with abutment means for the insertion of the pipe end into the bushing and the activation position of the bushing is downstream from the deactivation position with reference to a direction of introduction. from the pipe end into the coupler.
  • the sleeve has a downstream end provided with an elastically deformable annular seal comprising an internal annular shoulder forming the stop at the insertion of the conduit end.
  • the annular sealing gasket then performs, in addition to its conventional sealing function, a stop function at the insertion of the pipe end into the socket and a recoil compensation function for the pipe end. when the circuit in which the coupler is installed is pressurized. This limits the formation of fluid retention zones.
  • FIG. 1 is an exploded view in longitudinal section of a cartridge-type coupler according to 1 ' vention
  • FIG. 2 is an elevation view of the tubular body of this coupler
  • FIGS. 3 to 6 are views in longitudinal section of this cartridge-type coupler installed in a member of a fluid transport circuit, and show different phases of introduction of a pipe end,
  • FIG. 7 is a view similar to FIG. 6 of this coupler according to an alternative embodiment
  • Figure 8 is a view similar to Figure 3 of a union type coupler according to the invention.
  • the coupler according to the invention is intended for the connection of a pipe end 1 to the internal channel 2 of a member 3 which opens out to the outside of the member 3 by a chamber 4 which has a diameter greater than that of the internal channel 2 and which is connected to the latter by a frustoconical surface 5.
  • the coupler comprises a tubular body generally designated at 6 made of thermoplastic material.
  • the tubular body 6 has an end portion 7 intended to be introduced into the recess 4 of the member 3 and, conversely, an end portion 8 intended to extend projecting from the member 3.
  • the end portion 7 is provided with means for anchoring it in the recess 4. These means are here produced in the form of a metal stud washer 9 partially embedded in the tubular body so that the stud washer 9 has its outer periphery which extends radially projecting outwards from the end portion 7.
  • the end portion 8 comprises two openings 10 diametrically opposite one another.
  • a tab 11 extends from a portion from the edge of the lumen 10 opposite the end portion 7 so as to have its free end projecting into the corresponding section of the internal channel generally designated at 13 of the tubular body 6.
  • the tabs 11 have an internal surface 14 inclined relative to the 'central axis of the tubular body 1 to form ramps as will be explained in the following description.
  • the internal channel 13 of the tubular body 6 is divided axially into two sections 13.1, 13.2.
  • Section 13.1 is located on the side of the end portion 7 and has a diameter greater than that of section 13.2 which extends it on the side of the end portion 8 and is connected to section 13.1 by a shoulder 13.3. .
  • the internal channel 13 receives a socket generally designated at 15.
  • the sleeve 15 comprises an annular part 16 slidingly received in section 13.1 of the internal channel 13 and has two opposite ends.
  • a stop element in flexible material here a seal bearing the general reference 17, made of an elastically deformable material such as an elastomer.
  • This seal 17 comprises a ring 18 having an external diameter slightly greater than the diameter of section 13.1 and an internal diameter substantially equal to the internal diameter of the pipe end 1, and a flange 19 having an internal diameter substantially equal to external diameter of the pipe end 1 and an external diameter substantially equal to the internal diameter of the aforementioned end of the annular part 16, the flange 19 being received in this end.
  • the collar 19 also has an internal bead 20 of annular shape and of diameter smaller than the external diameter of the pipe end 1.
  • the internal surface of the collar 19 is connected to the internal surface of the ring 18 by a shoulder 21 formed by a convex frustoconical surface.
  • the ring 18 has an end face 22 opposite the flange 19 of convex frustoconical shape corresponding substantially to that of the surface 5 of the member 3.
  • the arms 23 have a free end 24 which is internally provided with means for retaining the pipe end 1.
  • These retaining means are here formed by a metal clamp 25 partially embedded in the free end 24 to extend projecting radially inward.
  • the arms 23 are elastically deformable between a state of rest in which the studs 25 define a passage having a diameter slightly greater than the external diameter of the pipe end 1 and a deformed state in which the studs 25 define a passage of diameter slightly smaller than the external diameter of the pipe end 1.
  • the free ends 24 have an external surface 26 which has a ramp
  • the sleeve 15 is produced by bi-material injection.
  • the sleeve 15 is movable between a position for deactivating the retaining means (see FIG. 3) and a position for activating the retaining means (see FIG. 6), which will be detailed below.
  • the coupler is correctly implanted in the member 3 when the end portion 7 is anchored in the recess 4 (FIG. 3).
  • the sleeve 15 In a disconnected state, the sleeve 15 is in its deactivation position (FIG. 3). When the pipe end 1 is inserted in the bush 15, it abuts the shoulder 21 and drives the bush 15 towards the internal passage 2. The ramps 27 of the free ends 24 then meet the inclined surfaces 14 of the legs 11 which cause the arms 23 to deform their rest state to their deformed state ( Figures 4 and 5).
  • the arms 23 slightly apart so that the recess 28 is located opposite the free end of the legs 11.
  • the bush 15 is then in its position d 'activation and the tabs 11 constitute stops for the extraction of the sleeve 15 out of its activation position.
  • the tabs 11 maintain the arms 23 in a deformed state in which the studs 26 bite the external surface of the pipe end ( Figure 6).
  • the ring 28 is compressed between the frustoconical surface 5 of the member 3 and the end face of the pipe end 1 and exerts a reaction force on the bush 15 maintaining the recesses 28 in abutment against the free ends legs 11.
  • connection is signaled by an audible signal caused by the abrupt bringing into contact of the hooks 28 with the free ends of the tabs 11.
  • the appearance of the ends 24 in the slots 10 further signals to the operator that the connection is affected.
  • the recesses 28 then escape the free ends of the legs 11 and the pipe end 1 as well as the sleeve 15 can be brought to the rear until the annular part 16 of the sleeve 15 comes into abutment with the 'shoulder 13.3 separating sections 13.1 and 13.2, shoulder 13.3 which defines the position for deactivation of the socket.
  • this capsule 29 will be made of an elastically deformable material to allow disconnection maneuvers to be carried out without having to remove said capsule 29.
  • the invention is also applicable to union type couplers used for the connection to one another of two pipe ends.
  • the internal passage 2, the frustoconical surface 5 and the recess 4 are then produced directly in the end portion 7 of the tubular body 6, the recess 4 extending section 13.1 of the internal channel 13 of the tubular body 6.
  • the sleeve 15 is identical to that of the previous embodiment.
  • the abutment means may comprise an internal shoulder integral with the sleeve downstream of the retaining means by reference to the direction of introduction of the pipe end and preferably 1 ' internal shoulder is made of a flexible material.
  • latching means such as a latch mounted on the body to be movable radially between a locking position in which the latch has a portion engaged in a groove of the sleeve and an unlocking position in which this portion is released from the throat.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP02795327A 2001-10-30 2002-10-17 Kopplungsvorrichtung Expired - Lifetime EP1440271B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0114024A FR2831642B1 (fr) 2001-10-30 2001-10-30 Coupleur
FR0114024 2001-10-30
PCT/FR2002/003559 WO2003038329A1 (fr) 2001-10-30 2002-10-17 Coupleur

Publications (2)

Publication Number Publication Date
EP1440271A1 true EP1440271A1 (de) 2004-07-28
EP1440271B1 EP1440271B1 (de) 2009-11-11

Family

ID=8868874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02795327A Expired - Lifetime EP1440271B1 (de) 2001-10-30 2002-10-17 Kopplungsvorrichtung

Country Status (5)

Country Link
US (1) US6964436B2 (de)
EP (1) EP1440271B1 (de)
DE (1) DE60234371D1 (de)
FR (1) FR2831642B1 (de)
WO (1) WO2003038329A1 (de)

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US10962157B2 (en) 2017-04-18 2021-03-30 Cobalt Coupler Systems, LLC Coupler
US11560972B2 (en) 2017-04-18 2023-01-24 Cobalt Coupler Systems, LLC Oil and gas pipe connector
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KR101869319B1 (ko) * 2017-06-09 2018-06-20 김병섭 파이프 커버 기능을 갖는 배관 커플러
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WO2020205690A1 (en) 2019-04-01 2020-10-08 Swagelok Company Push to connect conduit fitting assemblies and arrangements
US10738924B1 (en) * 2019-10-14 2020-08-11 Alpha Hose Llc Coupler and method for attaching a device to a garden hose
BR102019026218A2 (pt) * 2019-12-11 2021-06-22 Parker Hannifin Indústria E Comércio Ltda arranjo de acoplamento de engate rápido para sistemas pneumáticos
FR3088404B1 (fr) * 2020-01-16 2023-12-29 Parker Hannifin Emea Sarl Dispositif de raccordement à fourrure mobile
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Also Published As

Publication number Publication date
US6964436B2 (en) 2005-11-15
DE60234371D1 (de) 2009-12-24
WO2003038329A1 (fr) 2003-05-08
US20040262920A1 (en) 2004-12-30
EP1440271B1 (de) 2009-11-11
FR2831642A1 (fr) 2003-05-02
FR2831642B1 (fr) 2003-12-19

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